Slide bolt door lock



Dec. 25, 1962 1-. H. JCHNSTONE ETAL 3,069,889

SLIDE BOLT DOORLOCK Filed Sept. 23, 1959 2 Sheets-Sheet 1 IN VENTORS Dec. 25, 1962 T. H. JOHNSTONE ETA]. 3,069,889

SLIDE BOLT DOOR LOCK Filed Sept. 25, 1959 2 Sheets-Sheet 2 A 7 TGEl/EV Patented Dec. 25, I962 Theodore II. .Iolmstone, Lincoln Park, and Floyd I. Easily and Bela dander, Detroit, Mich, assignors to General Motors Eorporation, Detroit, Mich, a corporation ot Delaware Filed Sept. 23, I959, Ser. No. 841,792 3 Elaims. (@Cl. 70-147) This invention relates to an improved type of slide bolt door latching mechanism particularly adapted for use in an automobile. More particularly the present invention relates to a slide bolt type door lock in which a pivoted type external handle is adapted to directly engage the slide bolt to retract the same to unlatch the door and at the same time providing a remotely controlled lever for also unlatching the door with the remote control lever, however, including means for locking the slide bolt in such a way as to prevent actuation thereof by the external handle. Thus the present invention provides a simplified door locking mechanism by eliminating extra members such as garnish molding type locking buttons as have been used in the past.

The details as well as other objects and advantages of the present invention will be apparent from a perusal of the detailed description which follows.

In the drawings:

FIGURE 1 shows a vehicle door embodying the subject invention;

FIGURE 2 is an enlarged View of the latching mechanism of FIGURE 1;

FIGURE 3 is a view along line 3--3 of FIGURE 2;

FIGURE 4 shows the slide bolt in a retracted or unlatched position; and

FIGURE 5 is a view alon g line 5-5 of FIGURE 2.

A vehicle is indicated generally at and includes a door 12 having a pivotally mounted door handle I4 mounted proximate the door latching mechanism In and an internally mounted remotely disposed handle I3 operatively connected to said latching mechanism through a control rod 20.

Referring particularly to FIGURE 3, a door pillar is shown at 22 and includes a striker member 24, shown in dotted lines, with which a sliding bolt member 26 is adapted to coaot to latch the door in a closed position. Sliding bolt 26 is of generally circular cross section and is slidably disposed in a casing member 23 mounted on end wall 30 of door 312. Sliding bolt 26 has a first longitudinally extending notch 32 formed therein. Notch 32 is adapted to coact with one end 34 of exterior door handle 14.

Door handle I4 is pivotally mounted through a pin 33 upon a bifurcated bracket 36 extending from slide bolt casing 23. The outer wall 4i) of door 12 has an opening 42 through which inner end 34 of the door handle projects to coact with slide bolt 26. A flexible seal 44 is secured between handle 14 and outer door wall 4% in order to seal the look from foreign materials.

Bosses 46 and 48 are respectively formed on slide bolt 25 and casing 23 to retain a spring member it normally biasing the slide bolt in its latching position, as shown in FIGURE 3. Spring Sll also maintains door handle 14 in its retracted position. As best seen in FIGURE 4 rotation of door handle 14 outwardly away from door 1.2 will cause slide bolt 26 to be retracted against the force of spring 5i thereby unlatching the bolt from striker 25 thereby permitting the door to be opened.

Slide bolt 26 may also be retracted by interior or remote handle 18 through an intermediary lever 52 also articulated to rod 28. Lever 52 is pivotally mounted by a pin 54 to a bracket extension 56 formed on slide bolt casing 28. Intermediate lever 52 includes a stud 58 fixed for movement therewith. Stud 58 is adapted to coact with a second longitudinal notch 66 formed in slide bolt 26 such that as remote handle 18 is rotated in a counterclockwise direction, as viewed in FIGURE 1, intermediate lever 52 will be rotated in a clockwise direction. As viewed in FIGURES 2 and 3, the clockwise or rightward movement of lever 52 moves stud 58 to the right to retract slide bolt 26.

In order to provide means for locking the vehicle from the inside, without the necessity of an unduly complicated locking mechanism, the present device provides a means whereby interior remote handle it? and intermediate lever 52 may be utilized for this purpose. As already noted, when interior handle 18 is pulled up, or rotated in a counterclockwise direction as viewed in FIGURE 1, the slide bolt may be unlatched to permit the door to be opened. On the other hand, when the handle 18 is moved downwardly, or in a clockwise direction, it is possible to lock the door against external opening. Referring first to Fi URE-S 3 and 4, it will be seen that slide bolt casing 28 includes a shoulder or flange 62 formed thereon proximate inner door wall 39. It will also be seen that exterior door handle 14 also includes a shoulder 64 formed thereon.

Intermediate lever 52 includes a locking extension 65 formed thereon which is adapted to project within the space between casing shoulder 62 and exterior door handle shoulder 64- in such a way as to prevent the exterior door handle from being pivoted to retract sliding bolt 2-6. Intermediate lever extension 66 is moved to its locking position, shown in dotted lines in FIGURES 2 and 3, by depressing or rotating remote handle 18 in a clockwise direction, as viewed in FIGURE 1, thereby imparting a counterclockwise rotation to intermediate lever 52 Whereby the blocking extension prevents rotation of handle 14. In order to provide means for externally locking or unlocking latch mechanism 15, a key operated door lock 68 is provided. Lock 68 includes a lever Til secured to the lock cylinder 72 and rotatable therewith. Lever 7i terminates in a transversely extending portion 74- adapted to engage with a slot 76 in a link 78. The other end of link 78 is articulated to a downwardly extending portion 80 of intermediate lever 52. Thus by inserting a suitable key 82 in lock 68 and rotating lock cylinder 72 and hence lever 7b in a counterclockwise direction, as viewed in FIGURE 2, a similar counterclockwise rotation will be imparted to intermediate lever 52 rotating blocking extension 66 into its locking position.

In order that the position of remote handle 18 not interfere with external locking or unlocking of mechanism 16, a slot 84- is provided in intermediate lever 52 and it is through this slot that rod 2G is connected with the lever. In this way a lost motion connection is provided between intermediate lever 52 and handle 18 permitting the lever to be moved by external lock 66 without moving remote handle 18.

A coil spring 86 is connected between bracket 56 and lower portion 80 of intermediate lever 52 so as to normally bias the intermediate lever to the position shown in FIGURE 2.

Referring again to slide bolt 26 as viewed in FIGURES 3 and 4, it will be seen that the notches 32 and 6d are made of suflicient longitudinal extent that the slide bolt may be moved by either the interior or exterior handle 18 or 14 without regard to the position of the other. This relationship is apparent in FIGURE 4 in which the slide bolt is moved to its retracted or unlatched position by the exterior handle 14- in which case the slide bolt has moved relative to the intermediate lever stud 58. Likewise stud 58, motivated by handle I8, may move slide bolt 26 without allecting the position of handle 14.

a scess We claim:

1. A vehicle door locking mechanism comprising a striker member mounted in a fixed relation relative to the door, casing means mounted Within said door proximate said striker, said casing means including a shoulder portion, a bolt member slidably disposed within said casing and adapted to extend through said door to engage said striker member, spring means normally biasing said sliding bolt into its striker engaging position, a first longitudinally extending notch formed in said sliding bolt member, a handle pivotally mounted on said door and including one end having a shoulder portion and a cam portion adapted to coact directly with said notch to retract sai sliding bolt against the force of said spring when said handle is rotated, a second longitudinally extending notch formed in said sliding bolt and axially spaced from said first notch, a bracket extending from said casing means, a lever pivotally mounted on said bracket, a stud member formed on said lever and adapted to coact directly with said second notch, a second handle pivotally mounted on said door and remotely disposed relative to said sliding bolt member, means interconnecting said lever and said second handle whereby the latter may be rotated to retract said sliding bolt member independently of the operation of said first handle, said casing shoulder portion projecting adjacent said first handle shoulder portion forming a space therebetween, said lever including an extension adapted to fit within said space when said second handle is moved in the direction opposite to its slide bolt retracting direction and thus prevent said first handle cam portion from coasting with said first notch.

2. A vehicle door locking mechanism comprising a str ker member mounted in a fixed relation relative to the door, casing means mounted Within said door proxinnate said striker, said casing means including a shoulder portion, a bolt member slidably disposed Within said casing and adapted to extend through said door to engage said striker member, spring means normally biasing said sliding bolt into its striker engaging position, a first longitudinally extending notch formed in said sliding bolt member, a handle pivotally mounted on said door and including one end having a shoulder portion and a cam portion adapted to coact di ectly with said notch to retract said sliding bolt against the force of said spring when said handle is rotated, at second longitudinally extending notch formed in said sliding bolt and axially spaced from said first notch, a bracket extending from said casing means, a lever pivotally mounted on said bracket, a stud member formed on said lever and adapted to coact directly with said second notch, a second handle pivotally mounted on said door and remotely disposed relative to said sliding bolt member, means interconnecting said lever and said second handle whereby the latter may be rotated to retract said sliding bolt member independently of the operation of said first handle, said casing shoulder portion projecting adjacent said first handle shoulder porits tion forming a space therebetween, said lever including an extension adapted to fit within said space when said second handle is moved the direction opposite to its slide bolt retracting direction and thus prevent said first handle cam portion from coacting with said first notcr and lock means operable independently of said second handle for operating said lever and rendering said first handle inoperative to retract said sliding bolt member.

3. A vehicle door locking mechanism comprising a striker member mounted in a fixed relation relative to the soot, casing means moun ed within said door proximate said striker, said casing including a shoulder portion, a bolt member slidably disposed within said casing and adapted to extend through said door to engage said striker ember, spring means normally biasing said sliding bolt into its striker engaging position, a first longitudinally ex ing notch formed in said sliding bolt member, a 1e pivotally mounted on said door and including one having a shoulder portion and a cam portion adapted to coast directly with sa d notch to retract said sliding bolt against the force of said spring when said handle is rotated, a second longitudinally extending notch formed in said sliding bolt and axially spaced from said first notch, a bracket extending from said casing means, a lever pivotally mounted on said bracket, a stud member formed on said lever and adapted to coact directly with said second notch, a second handle pivotally mounted on said door and remotely disposed relative to said sliding bolt member, means interconnecting said lever and said second handle whereby the latter may be rotated to street said sliding bolt member independently of the operation of said first handle, said casing shoulder portion projecting adjacent said first handle shoulder portion forming a space therebetwcen said lever including an extension adapted to fit Within said space when said second handle is moved in the -rection opposite to its slide bolt retractin g direction and thus prevent said first handle cam portion from coacting with said first notch, lock means operable independently of said second handle for operating said lever and rendering said first handle inoperative to retract said sliding bolt member, and a lost motion connection between said lever and said second handle permitting lever mover ent by said means irrespective of the second handle position.

References in the file of this patent UNITED STATES PATENTS 

